Merge pull request #5 from danielwhite/travis

Provide support for building tests on travis
Remove LinkedIn profile
Merge pull request #6 from danielwhite/dependencies

Improve the starting of application dependencies in development
Merge pull request #7 from danielwhite/udp-default-port

Default to port 5060 when responding over UDP where the port is unspecified
Upgrade ranch dependency to 0.8.4

This matches the version used in the latest stable cowboy release
which is useful for those also depending on cowboy.
Upgrade lager to 2.0.0